Double free exception when using temp files
I created a task object, and I take following steps in this task:
iomuxrunerror.jpg
_provider = CreateTempFilesProvider(_iomux);
_tempFiles = _provider->CreateTempFiles(_log->AsIInstanceLog(), _appServiceId.c_str(), _dbName.c_str());
_writer = _tempFiles->Write(this);
if (_writer)
{
std::string dummyContent = "xqting";
_writer->Write((byte*)dummyContent.c_str(), dummyContent.length(), true);
}
Which causes the file to be written on the system. However, the Write functions third parameter set to true means this is the only block and the file should be closed and we get the complete call back.
void CreateTempFileTask::TaskComplete(class ITask* const task)
{
//_writer->Close();
LOGI("Created dummy temp file task complete reported");
_completed = true;
}
This callback is indeed triggered. However, I then get an unhandled exception from iomux->Run (see screenshot attached) and in the debug window it states "free(): double free detected in tcache 2"
The destructor of my tasks looks as below. It doesn't matter whether I comment or uncomment these deletes, it always throws that exception whether I delete my objects or not (It would make sense that I delete them, since I created them as well)
CreateTempFileTask::~CreateTempFileTask()
{
//if (_provider) delete _provider;
//if (_tempFiles) delete _tempFiles;
//if (_writer) delete _writer;
}
Please advise
iomuxrunerror.jpg 